ramses stuff

better doc-strings setDisplayBrightness(), setDisplayContrast() and their
...Resolution() friends

1 files changed, 8 insertions, 4 deletions

diff --git a/libopie/odevice.cpp b/libopie/odevice.cpp
index 160568b..f808960 100644
--- a/libopie/odevice.cpp
+++ b/libopie/odevice.cpp
@@ -535,66 +535,70 @@ bool ODevice::suspend ( )
 #define VESA_POWERDOWN        3
 
 /**
  * This sets the display on or off
  */
 bool ODevice::setDisplayStatus ( bool on )
 {
 	qDebug("ODevice::setDisplayStatus(%d)", on);
 
 	if ( d-> m_model == Model_Unknown )
 		return false;
 
 	bool res = false;
 	int fd;
 
 	if (( fd = ::open ( "/dev/fb0", O_RDWR )) >= 0 ) {
 		res = ( ::ioctl ( fd, FBIOBLANK, on ? VESA_NO_BLANKING : VESA_POWERDOWN ) == 0 );
 		::close ( fd );
 	}
 	return res;
 }
 
 /**
  * This sets the display brightness
+ *
+ * @param p The brightness to be set on a scale from 0 to 255
  * @return success or failure
  */
 bool ODevice::setDisplayBrightness ( int p)
 {
         Q_UNUSED( p )
 	return false;
 }
 
 /**
- * @return return the max value for the brightness settings slider
+ * @return returns the number of steppings on the brightness slider
+ * in the Light-'n-Power settings.
  */
 int ODevice::displayBrightnessResolution ( ) const
 {
 	return 16;
 }
 
 /**
  * This sets the display contrast
+ * @param p The contrast to be set on a scale from 0 to 255
  * @return success or failure
  */
 bool ODevice::setDisplayContrast ( int p)
 {
         Q_UNUSED( p )
 	return false;
 }
 
 /**
  * @return return the max value for the brightness settings slider
  *         or 0 if the device doesn't support setting of a contrast
  */
 int ODevice::displayContrastResolution ( ) const
 {
 	return 0;
 }
 
 /**
  * This returns the vendor as string
  * @return Vendor as QString
  */
 QString ODevice::vendorString ( ) const
 {
 	return d-> m_vendorstr;
@@ -2049,50 +2053,50 @@ bool Ramses::setDisplayBrightness(int bright)
 	if ((fd = ::open("/proc/sys/board/pwm1", O_WRONLY)) >= 0) {
 		qDebug(" %d -> pwm1", bright);
 		char writeCommand[100];
 		const int count = sprintf(writeCommand, "%d\n", bright);
 		res = (::write(fd, writeCommand, count) != -1);
 		::close(fd);
 	} else {
 		qWarning("no write");
 	}
 	return res;
 }
 
 
 int Ramses::displayBrightnessResolution() const
 {
 	return 32;
 }
 
 bool Ramses::setDisplayContrast(int contr)
 {
 	qDebug("Ramses::setDisplayContrast(%d)", contr);
 	bool res = false;
 	int fd;
 
-	// pwm0 contrast: 35 steps 65..100 (dunkel->hell)
+	// pwm0 contrast: 20 steps 79..90 (dunkel->hell)
 
 	if (contr > 255 )
 		contr = 255;
 	if (contr < 0)
 		contr = 0;
-	contr = 65 + (contr * 350 / 255);
+	contr = 90 - (contr * 20 / 255);
 
 	if ((fd = ::open("/proc/sys/board/pwm0", O_WRONLY)) >= 0) {
 		qDebug(" %d -> pwm0", contr);
 		char writeCommand[100];
 		const int count = sprintf(writeCommand, "%d\n", contr);
 		res = (::write(fd, writeCommand, count) != -1);
 		res = true;
 		::close(fd);
 	} else {
 		qWarning("no write");
 	}
 	return res;
 }
 
 
 int Ramses::displayContrastResolution() const
 {
-	return 32;
+	return 20;
 }